Not every piece of research is a contentious "Study of the Day." Most of them actually confirm what we would logically conclude, and it's heartening and important to hear that we're right once in a while.

Chocolate Reviews/Flickr

While we're humming
along, unknowingly shortening our life spans in all sorts of fascinating ways, researchers are hard at work quantifying
anything and everything. A lot of what they find is interesting, and some of it may even help us improve our health. But for every study that shakes our worldview by insisting that
eggs may be nearly as bad for your arteries as cigarettes, scores of others are far less groundbreaking. But that doesn't make them unimportant.

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Exercise is good for your heart.

It's even good for us in space.
This new study looked specifically at markers of inflammation in over 4,000 men, lower levels of which were found in participants who exercised at least
2.5 hours a week. The researchers were able to conclude that moderate exercise lowered the risk of heart disease in the population they studied. They
emphasize that, as a ten year follow-up study, this is able to tell us more about the long-term effects of exercise on the heart.

As a reminder to older adults with heart conditions who want to count sex as their daily cardio, it's probably safe.

A study confirmed that deep down in our brains, behind the botox, face-lifts, and anti-aging snake oil, the truth comes out. Researchers used brain scans to identify 231 biomarkers that combine to reveal an individual's age. They claim that this system is more accurate, at 92 percent, than any other biological indicators of age.

A focus group comprised of college-aged women discussing body image and media messages revealed that the subjects were more concerned about calorie-counting than eating healthfully. Interviews with nutrition counselors confirmed that "lack of time and unhealthy food environments can keep college-age students from getting good nutrition." The professor who boasted of losing 27 pounds on a calorie-restricted, all-Twinkie diet is probably not serving as a great role model in these cases.

The degree to which these findings are not at all new is discouraging. It was found earlier this year that 11 percent of women over 50 have had an eating disorder, and from the looks of things, that statistic isn't likely to significantly decrease for the next generation of women.

There have been a ton of studies aimed at justifying the incomparable pleasure of -- moderate -- chocolate consumption. The Atlantic has
previously reported on data that says daily doses of flavanol-rich dark chocolate
can reduce the incidence of heart attacks and strokes in people with metabolic syndrome and even help you lose weight. This newest chocolate study
aggregates data from 20 other chocolate studies to modestly conclude that eating dark chocolate every day for several weeks is associated with a drop in
blood pressure of about two to three points.

Like
all chocolate studies, they emphasize moderation and not substituting chocolate for healthy foods and exercise.

In one of a series of experiments, researchers presented MBA students with a list of names and events from history and literature and asked them to
identify which items they recognized. They did not tell the students that some of the items, such as "Prince Lorenzo" and "Windermere Wild," were made up.
The overconfident students -- the ones who claimed to recognized the largest number of nonsense words and phrases -- were also at the top of the social
ladder in their randomly-assigned groups.

It would seem that Mark Twain had already figured this out: "All you need in life is ignorance and confidence, and then success is
sure."

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His paranoid style paved the road for Trumpism. Now he fears what’s been unleashed.

Glenn Beck looks like the dad in a Disney movie. He’s earnest, geeky, pink, and slightly bulbous. His idea of salty language is bullcrap.

The atmosphere at Beck’s Mercury Studios, outside Dallas, is similarly soothing, provided you ignore the references to genocide and civilizational collapse. In October, when most commentators considered a Donald Trump presidency a remote possibility, I followed audience members onto the set of The Glenn Beck Program, which airs on Beck’s website, theblaze.com. On the way, we passed through a life-size replica of the Oval Office as it might look if inhabited by a President Beck, complete with a portrait of Ronald Reagan and a large Norman Rockwell print of a Boy Scout.

Should you drink more coffee? Should you take melatonin? Can you train yourself to need less sleep? A physician’s guide to sleep in a stressful age.

During residency, Iworked hospital shifts that could last 36 hours, without sleep, often without breaks of more than a few minutes. Even writing this now, it sounds to me like I’m bragging or laying claim to some fortitude of character. I can’t think of another type of self-injury that might be similarly lauded, except maybe binge drinking. Technically the shifts were 30 hours, the mandatory limit imposed by the Accreditation Council for Graduate Medical Education, but we stayed longer because people kept getting sick. Being a doctor is supposed to be about putting other people’s needs before your own. Our job was to power through.

The shifts usually felt shorter than they were, because they were so hectic. There was always a new patient in the emergency room who needed to be admitted, or a staff member on the eighth floor (which was full of late-stage terminally ill people) who needed me to fill out a death certificate. Sleep deprivation manifested as bouts of anger and despair mixed in with some euphoria, along with other sensations I’ve not had before or since. I remember once sitting with the family of a patient in critical condition, discussing an advance directive—the terms defining what the patient would want done were his heart to stop, which seemed likely to happen at any minute. Would he want to have chest compressions, electrical shocks, a breathing tube? In the middle of this, I had to look straight down at the chart in my lap, because I was laughing. This was the least funny scenario possible. I was experiencing a physical reaction unrelated to anything I knew to be happening in my mind. There is a type of seizure, called a gelastic seizure, during which the seizing person appears to be laughing—but I don’t think that was it. I think it was plain old delirium. It was mortifying, though no one seemed to notice.

Why did Trump’s choice for national-security advisor perform so well in the war on terror, only to find himself forced out of the Defense Intelligence Agency?

How does a man like retired Lieutenant General Mike Flynn—who spent his life sifting through information and parsing reports, separating rumor and innuendo from actionable intelligence—come to promote conspiracy theories on social media?

Perhaps it’s less Flynn who’s changed than that the circumstances in which he finds himself—thriving in some roles, and flailing in others.

In diagnostic testing, there’s a basic distinction between sensitivity, or the ability to identify positive results, and specificity, the ability to exclude negative ones. A test with high specificity may avoid generating false positives, but at the price of missing many diagnoses. One with high sensitivity may catch those tricky diagnoses, but also generate false positives along the way. Some people seem to sift through information with high sensitivity, but low specificity—spotting connections that others can’t, and perhaps some that aren’t even there.

“Well, you’re just special. You’re American,” remarked my colleague, smirking from across the coffee table. My other Finnish coworkers, from the school in Helsinki where I teach, nodded in agreement. They had just finished critiquing one of my habits, and they could see that I was on the defensive.

I threw my hands up and snapped, “You’re accusing me of being too friendly? Is that really such a bad thing?”

“Well, when I greet a colleague, I keep track,” she retorted, “so I don’t greet them again during the day!” Another chimed in, “That’s the same for me, too!”

Unbelievable, I thought. According to them, I’m too generous with my hellos.

When I told them I would do my best to greet them just once every day, they told me not to change my ways. They said they understood me. But the thing is, now that I’ve viewed myself from their perspective, I’m not sure I want to remain the same. Change isn’t a bad thing. And since moving to Finland two years ago, I’ve kicked a few bad American habits.

Why the ingrained expectation that women should desire to become parents is unhealthy

In 2008, Nebraska decriminalized child abandonment. The move was part of a "safe haven" law designed to address increased rates of infanticide in the state. Like other safe-haven laws, parents in Nebraska who felt unprepared to care for their babies could drop them off in a designated location without fear of arrest and prosecution. But legislators made a major logistical error: They failed to implement an age limitation for dropped-off children.

Within just weeks of the law passing, parents started dropping off their kids. But here's the rub: None of them were infants. A couple of months in, 36 children had been left in state hospitals and police stations. Twenty-two of the children were over 13 years old. A 51-year-old grandmother dropped off a 12-year-old boy. One father dropped off his entire family -- nine children from ages one to 17. Others drove from neighboring states to drop off their children once they heard that they could abandon them without repercussion.

Democrats who have struggled for years to sell the public on the Affordable Care Act are now confronting a far more urgent task: mobilizing a political coalition to save it.

Even as the party reels from last month’s election defeat, members of Congress, operatives, and liberal allies have turned to plotting a campaign against repealing the law that, they hope, will rival the Tea Party uprising of 2009 that nearly scuttled its passage in the first place. A group of progressive advocacy groups will announce on Friday a coordinated effort to protect the beneficiaries of the Affordable Care Act and stop Republicans from repealing the law without first identifying a plan to replace it.

They don’t have much time to fight back. Republicans on Capitol Hill plan to set repeal of Obamacare in motion as soon as the new Congress opens in January, and both the House and Senate could vote to wind down the law immediately after President-elect Donald Trump takes the oath of office on the 20th.

Trinidad has the highest rate of Islamic State recruitment in the Western hemisphere. How did this happen?

This summer, the so-called Islamic State published issue 15 of its online magazine Dabiq. In what has become a standard feature, it ran an interview with an ISIS foreign fighter. “When I was around twenty years old I would come to accept the religion of truth, Islam,” said Abu Sa’d at-Trinidadi, recalling how he had turned away from the Christian faith he was born into.

At-Trinidadi, as his nom de guerre suggests, is from the Caribbean island of Trinidad and Tobago (T&T), a country more readily associated with calypso and carnival than the “caliphate.” Asked if he had a message for “the Muslims of Trinidad,” he condemned his co-religionists at home for remaining in “a place where you have no honor and are forced to live in humiliation, subjugated by the disbelievers.” More chillingly, he urged Muslims in T&T to wage jihad against their fellow citizens: “Terrify the disbelievers in their own homes and make their streets run with their blood.”

A professor of cognitive science argues that the world is nothing like the one we experience through our senses.

As we go about our daily lives, we tend to assume that our perceptions—sights, sounds, textures, tastes—are an accurate portrayal of the real world. Sure, when we stop and think about it—or when we find ourselves fooled by a perceptual illusion—we realize with a jolt that what we perceive is never the world directly, but rather our brain’s best guess at what that world is like, a kind of internal simulation of an external reality. Still, we bank on the fact that our simulation is a reasonably decent one. If it wasn’t, wouldn’t evolution have weeded us out by now? The true reality might be forever beyond our reach, but surely our senses give us at least an inkling of what it’s really like.

The same part of the brain that allows us to step into the shoes of others also helps us restrain ourselves.

You’ve likely seen the video before: a stream of kids, confronted with a single, alluring marshmallow. If they can resist eating it for 15 minutes, they’ll get two. Some do. Others cave almost immediately.

This “Marshmallow Test,” first conducted in the 1960s, perfectly illustrates the ongoing war between impulsivity and self-control. The kids have to tamp down their immediate desires and focus on long-term goals—an ability that correlates with their later health, wealth, and academic success, and that is supposedly controlled by the front part of the brain. But a new study by Alexander Soutschek at the University of Zurich suggests that self-control is also influenced by another brain region—and one that casts this ability in a different light.

A new survey suggests many might prefer a kind of multipolar Washington, with three distinct orbits of power checking each other.

Does Donald Trump have a mandate?

Though last month’s election provided Trump and his fellow Republicans unified control of the White House, House of Representatives, and Senate for the first time since 2006, the latest Allstate/Atlantic Media Heartland Monitor Poll shows the country remains closely split on many of the key policy challenges facing the incoming administration—and sharply divided on whether they trust the next president to take the lead in responding to them.

In addition, on several important choices facing the new administration and Congress, the survey found that respondents who voted for Trump supported a position that was rejected by the majority of adults overall. That contrast may simultaneously encourage Trump to press forward on an agenda that energizes his coalition, while emboldening congressional Democrats to resist him.